Rare DRB III prototype, not the production model.

This is prior to the DVOM becoming a separate PCB, prior to contrast & backlight being accessible from the keypad, and before the cooling fan was added. The unit powers up to a blank screen and needs troubleshooting in order to function.

April 2023 UPDATE: Upon power up the unit now clears the screen, green & red LED flash together once & unit beeps once. RAM & ROM were removed to preform trace repair & dump images.

If you have any of the other DRB III prototypes please message me I would like to compare notes or purchase.

Inquire about DRB III REPAIRS, updates, local rentals, parts or other units & accessories.

Customer support/questions - text for fastest response 201. 761. 9999

I do not answer phone numbers I do not know because of robo callers, please leave a message if calling.